Nikon 50i User manual

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Fr
Instruction manual/Manuel d’utilisation
Laser Rangefinder/Télémètre laser

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CONTENTS
English
Introduction
Read this First......................................................................4
SAFETY AND OPERATION PRECAUTIONS..................5
Getting to know the Laser Rangefinder
Key features..........................................................................8
Nomenclature/Composition..........................................9
Internal display ................................................................ 10
Functions
First Target Priority algorithm..................................... 11
Dual LOCKED ON
(First Target Priority detection notice function)... 11
Actual Distance Indicator............................................. 11
Magnet................................................................................ 11
Inserting/Replacing battery
Type of battery................................................................. 12
Inserting/Replacing battery........................................ 12
Battery level indicator ................................................... 12
Navigating the menus
Changing the measurement display mode........... 14
Changing the internal display luminance (F1)..... 15
Changing the distance display unit (F2)................. 16
Operation diagram of the setting menus .............. 17
Measurement
Adjusting the focus of the internal display............ 18
Measuring.......................................................................... 18
Single measurement...................................................... 19
Continuous measurement........................................... 19
Technical notes
Specifications ................................................................... 20
Troubleshooting/Repair ............................................... 22
English

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Introduction
Read this First
Thank you for purchasing the Nikon Laser Rangefinder.
Before using the product, read this manual thoroughly to ensure proper use.
After reading this manual, keep it in a readily accessible place for future reference.
llAbout the manual
• No part of the manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or
translated into any language in any form, by any means, without Nikon’s prior written permission.
• Illustrations and display content shown in this manual may differ from the actual product.
• Nikon will not be held liable for any errors this manual may contain.
• The appearance, specifications, and capabilities of this product are subject to change without notice.
llAbout controls for radio interference
• This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired
operation.
• This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules and to EU EMC directive. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Consult the dealer or an experienced radio/TV technician for help.
Notice for customers in Canada
CAN ICES-3(B)/NMB-3(B)

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SAFETY AND OPERATION PRECAUTIONS
Strictly observe the guidelines
contained in this manual in
order to use this product safely
and prevent possible injury or
property damage to you and
others. Understand the contents
thoroughly for correct use of the
product.
WARNING
This indicates that improper use by
ignoring the contents described
herein can result in potential death
or serious injury.
CAUTION
This indicates that improper use by
ignoring the contents described
herein can result in potential injury
or material loss.
SAFETY PRECAUTIONS (Laser)
This product uses an invisible laser
beam. Be sure to observe the
following:
WARNING
• Do not press the PWR button while
looking into the laser emission
aperture. You may damage your
eyes.
• Do not aim at eyes.
• Do not point the laser at people.
• Do not look at lasers with other
optical instruments such as lenses
or binoculars. You may damage
your eyes.
• When not measuring, keep your
fingers away from the PWR button
to avoid accidentally emitting the
laser.
• When not in use for an extended
period, remove the battery.
• Do not disassemble, remodel, or
repair the product. The laser
emission may be harmful to your
health. If the product is
disassembled, remodeled, or
repaired, it is no longer
guaranteed by the manufacturer.
• Store the product in a place out of
reach of children.
SAFETY PRECAUTIONS
(Monocular)
WARNING
• Never look directly at the sun,
intense light, or lasers while using
this product. It may seriously
damage the eyes or cause
blindness.
• Users of medical devices such as
cardiac pacemakers should not use
this product and its accessories.
Magnets built into the product
and accessories can cause medical
device malfunctions. Also, keep
credit cards and electronic media
away from this product and its
accessories. Recorded data may
get corrupted.
CAUTION
• Keep the plastic bag used to wrap
this product or other small parts
out of reach of children. The bag
may block their mouths and noses
and cause them to suffocate.
• Be careful of children inadvertently
swallowing small parts or
accessories. If children swallow
such parts, see a doctor
immediately.
• Turn off this product when not in
use.

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• When carrying this product, store
it in the case.
• If this product fails to operate
correctly for any reason,
discontinue use immediately and
consult with a Nikon authorized
service representative.
• Do not leave this product in an
unstable place. It may fall and
cause injury or malfunction.
• Do not use this product while
walking. You may walk into
something or fall and cause injury
or malfunction.
• Do not swing this product by the
strap. You may hit others and
cause injury.
• The rubber parts of this product
(such as the eyecup) may
deteriorate if used or stored for a
long period of time. The
deteriorated rubber may attach on
clothes and cause stains. Check
their condition before use, and
consult with a Nikon authorized
service representative if a defect is
found.
• Using the rubber eyecup for
extended periods of time may
cause skin inflammation. If you
develop any symptoms, stop use
and see a doctor immediately.
PRECAUTIONS
(Lithium battery)
Incorrect use may cause the lithium
battery to rupture or leak, which will
corrode the device or stain your
hands and clothing.
Be sure to observe the following:
• Install the battery with the + and
– poles positioned correctly.
• Remove the battery when this is
depleted or will not be used for
extended periods.
• Keep the battery away from fire or
water. Never disassemble the
battery.
• Do not charge the lithium battery.
• Do not short the terminal of the
battery chamber.
• Do not carry the battery together
with keys or coins in a pocket or
bag. You may short the battery and
cause overheating.
• If liquid leaked from the lithium
battery comes into contact with
clothing or skin, rinse with plenty
of water. If it enters the eyes or
mouth, rinse with water and
consult a doctor immediately.
• When disposing of the lithium
battery, follow your local area
regulations.
HANDLING AND OPERATION
PRECAUTIONS
• Do not subject this product to
physical shock.
• If you accidentally apply strong
physical shock or drop the product
and suspect a malfunction, consult
with your local dealer or a Nikon
authorized service representative
immediately.
• Do not use the product
underwater.
• Wipe off any rain, water, sand, or
mud on the product as soon as
possible with a soft, clean cloth.
• When this product is exposed to
extreme temperature changes
(suddenly brought from a cold
place to a warm place or vice-
versa), the lens surfaces may get
cloudy. Do not use the product
until the cloudiness has
disappeared.
• Do not leave the product in a car
on a hot or sunny day, or near heat
generating equipment.

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• Do not leave the
eyepiece in direct
sunlight. The
condenser effect of
the lens may
damage the internal
display surface.
CARE AND MAINTENANCE
PRECAUTIONS
LENS
Be careful that you do not directly
touch the lens surface with your
hands when cleaning it. Remove
dust or lint with a blower*. For
fingerprints or other stains that
cannot be removed with a blower,
wipe the lens with a dry soft cloth or
cleaning cloth for eyeglasses, using a
spiral motion that starts at the center
of the lens and working towards the
edges. Wiping too firmly or wiping
with a hard material may damage
the lens. If this fails, gently wipe the
lens using a cloth lightly dampened
with commercial lens cleaner.
MAIN BODY
After gently removing dust with a
blower, clean the body surface with a
soft, clean cloth. After use at a
seaside, wipe off salt that may be on
the body surface with a damp, soft,
clean cloth, and then wipe with a dry
cloth. Do not use benzene, thinner,
or other cleaners containing organic
solvents.
STORAGE
Water condensation or mold may
occur on lens surfaces because of
high humidity. Therefore, store the
product in a cool, dry place. After use
on a rainy day or at night, thoroughly
dry it at room temperature, then
store in a cool, dry place.
* A rubber cleaning tool that blows
air from a nozzle.
En Symbol for separate collection applicable
in European countries
This symbol indicates that this battery is
to be collected separately.
The following apply only to users in
European countries.
• This battery is designated for
separate collection at an appropriate
collection point. Do not dispose of as
household waste.
• For more information, contact the
retailer or the local authorities in
charge of waste management.
En Symbol for separate collection applicable
in European countries
This symbol indicates that this product is
to be collected separately.
The following apply only to users in
European countries.
• This product is designated for
separate collection at an appropriate
collection point. Do not dispose of as
household waste.
• For more information, contact the
retailer or the local authorities in
charge of waste management.

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En Key features
• Employs the First Target Priority algorithm that
makes a flagstick easy to measure
• Notifies with the LOCKED ON sign (First Target
Priority detection sign) and rangefinder vibration
when measuring overlapping subjects and the
distance to the closest subject is displayed
• High-quality 6× finder with multilayer coating
• Internal magnet on the side allows attachment to
metal surfaces for convenient carrying
• Switch between two measurement display modes
for the internal display: Golf mode (slope adjusted
distance (horizontal distance ± height) and actual
distance) and Actual distance mode
• Golf mode (default setting) displays the slope
adjusted distance (horizontal distance ± height)
which is useful for golf
• Built-in Actual Distance Indicator
• Press and hold down the PWR button to activate
the continuous measurement function (up to
approx. 8 seconds)
• Automatic power shut-off (approx. 8 sec.
unoperated from standby screen)
• Rainproof — JIS/IEC protection class 4 (IPX4)
equivalent (under Nikon’s testing conditions)
• Invisible/Eyesafe EN/IEC Class 1M Laser
llAbout measurement results
This device is a basic rangefinder. Its measurement results cannot be used as official evidence.
This product uses an invisible laser beam for
measuring. It measures the time the laser beam
takes to travel from the rangefinder to the target
and back. Laser reflectivity and measurement
results may vary according to climatic and
environmental conditions, as well as the color,
surface finish, size, shape and other
characteristics of the target.
Measurement may be inaccurate or fail in the
following cases:
• In snow, rain or fog
• Small or slender target
• Black or dark target
• Target has stepped surface
• Moving or vibrating target
• When measuring the surface of water
• Target measured through glass
• When the target is glass or a mirror
• When laser incidence to the target’s reflective
surface is oblique
Getting to know the Laser Rangefinder

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Nomenclature/Composition
1
b
a
c
8
7
6
5
4
2
0
d
3
9
e
Composition
• Body ×1
• Lithium battery (CR2) ×1
• Case ×1
The carabiner-style ring included with the case is for
carrying the laser rangefinder.
Do not hang heavy objects from it or pull it strongly. It
cannot be used for climbing or mountaineering.
1MODE button
2PWR button (POWER ON/Measurement
button)
36× monocular eyepiece
4Eyecup/Diopter adjustment ring
5Diopter index
6Battery-chamber cover
7Battery-chamber cover “Open”indication
8Strap eyelet
9Monocular objective lens
0Actual Distance Indicator
aLaser emission aperture
bInvisible laser detector aperture
cMagnet
dProduct number label
eIndication

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En Internal display
1Actual distance (in Golf mode)*
: “Failed to measure”or “Unable to measure”
2Target mark
: Aim at the target you want to measure.
Position the target at the center of the
mark.
3Unit of measure (M: meter/YD: yard)
4Distance
: “Failed to measure”or “Unable to measure”
5Battery level indicator
6Golf mode mark*
7Laser emission mark
: Appears while the laser is being emitted for a
measurement. Do not look towards the
objective lens side while this mark is shown.
8LOCKED ON sign (First Target Priority detection sign)
: When measuring overlapping subjects, and the
distance to the closest subject is displayed, this
sign is lit.
1
3
6
5
2
7
8
4
* For details, refer to“Changing the measurement display mode”.
• The internal display of this product is enlarged by the eyepiece. Although you may see dust that has
entered, it does not affect the accuracy of measurement.

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First Target Priority algorithm
When measuring overlapping subjects, First Target Priority algorithm displays the distance to the closest
subject.
Dual LOCKED ON (First Target Priority detection notice function)
When measuring overlapping subjects, such as a flagstick with trees in the background, and the distance
to a closest subject is displayed, the LOCKED ON sign (First Target Priority detection sign)* is lit in the
viewfinder and the rangefinder vibrates at the same time to notify you.
*Single measurement: When measuring overlapping subjects and the distance to the closest subject is
displayed, the LOCKED ON sign appears and the body vibrates briefly.
Continuous measurement: When displayed figures shift to a closer subject, the LOCKED ON sign appears
and the body vibrates briefly.
LOCKED ON sign (First Target Priority
detection sign) is lit.
Actual Distance Indicator
When the measurement display mode is set to Actual distance mode, the Actual Distance Indicator blinks
while the Laser Rangefinder is ON.
You can find out at a glance that the inclinometer function is not being used.
Magnet
An internal magnet* on the side allows attachment to metal surfaces for convenient carrying.
*When attaching to magnetic metals using the rangefinder’s internal magnet, make sure that the
rangefinder is securely set in place. It may fall due to vibration or impact.
Functions

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En Type of battery
3V CR2 lithium battery ×1
Inserting/Replacing battery
1. Open the battery-chamber cover.
Rotate the battery-chamber cover counterclockwise and remove it.
2. Insert the battery.
To replace the battery, take out the old battery before inserting a new one.
Follow the battery insertion mark inside the battery chamber to insert the + and - ends of the battery in
the correct orientation (insert the battery so that + is pointing outward). If the battery is not inserted
correctly, the Laser Rangefinder will not operate.
3. Attach the battery-chamber cover.
Rotate the battery-chamber cover clockwise and secure it firmly. When attaching the battery-chamber
cover, securely screw it all the way and check that it is secured.
• The battery-chamber cover may be difficult to rotate because this product uses a rubber seal to
maintain its water resistance capabilities.
Battery level indicator
Display Description
After power on, displays for 2 seconds only. Sufficient power available.
After power on, displays for 2 seconds only. Power getting low.
Prepare to replace the battery.
Displayed continuously. Low. Battery should be replaced with a new one.
Blinks. After blinking 3 times, automatically
powers off.
The battery is empty.
Replace the battery.
Inserting/Replacing battery

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• Operating the MODE button
There are two ways to press the MODE button. Operate the button while following the descriptions in this manual.
- “Press and hold”means to continue pressing the button for 1.5 seconds or longer.
- “Press” means to press the button quickly (less than 1.5 seconds).
Navigating the menus

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En Changing the measurement display mode
Switch between two modes (refer to the figure below) according to your golf
playstyle. The displayed information differs depending on the mode. Factory
default setting is golf mode.
1. Press the PWR button to turn on the Laser Rangefinder.
2. The measurement display mode switches every time you press the MODE
button.
Golf mode: Slope adjusted distance
(horizontal distance ± height) and actual distance Actual distance mode
Incline
Decline
N/A
Actual
distance
Slope adjusted
distance
(horizontal distance
± height)
Actual
distance
N/A
• In Actual distance mode, the Actual Distance Indicator blinks.
• The setting is saved even when the Laser Rangefinder is turned OFF.

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Changing the internal display luminance (F1)
Adjust the brightness of the internal display. The factory default setting is 5. You can select 1 to 5.
• 1 - 5: 1 is the darkest, while 5 is the brightest.
1. Press the PWR button to turn on the Laser Rangefinder.
2. Press and hold the MODE button.
• You can now change the internal display luminance.
3. The setting switches every time you press the PWR button.
• If you press and hold the MODE button or do not operate the buttons for about 8 seconds, the
displayed setting is saved and the Laser Rangefinder returns to standby.
• The setting is saved even when the Laser Rangefinder is turned OFF.

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En Changing the distance display unit (F2)
For the display unit of the measurement results, select YD (yards) or m (meters). Factory default setting is
YD (yard).
1. Press the PWR button to turn on the Laser Rangefinder.
2. Press and hold the MODE button.
3. Press the MODE button once.
• You can now change the distance display unit.
4. The setting switches every time you press the PWR button.
(yard) (meter)
• If you press and hold the MODE button or do not operate the buttons for
about 8 seconds, the displayed setting is saved and the Laser Rangefinder
returns to standby.
• The setting is saved even when the Laser Rangefinder is turned OFF.

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Operation diagram of the setting menus
N/A
Standby
Press and hold the MODE button.
Press the MODE button.
Press the PWR button.
Internal display luminance: F1
Distance display unit: F2
Golf mode: Slope adjusted distance
(horizontal distance ± height) and actual distance
Actual distance mode
Measurement display mode
(yard) (meter)
• The measurement display mode switches every time you press the
MODE button.

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Measurement
Caution — Controls, adjustments or usage of procedures other than those specified herein may produce
negative effects or damage to your health due to laser radiation.
• Before measuring, confirm the menus and change the settings by referring to“Setting the menu options”.
Adjusting the focus of the internal display
If the internal display is difficult to see, adjust the focus with the following
procedure.
1. Press the PWR button to turn on the power.
2. Look through the eyepiece and rotate the diopter adjustment ring until the
internal display comes into focus.
Diopter adjustment ring
Measuring
1. Press the PWR button to turn on the power.
• If you do not operate the button for about 8
seconds, the power turns off automatically.
2. Aim at the target.
Position the center of the target mark on the
target.
Immediately after power-on
Target mark
3. Press the PWR button to measure.
After measurement, the result is displayed for approx. 8 seconds, then power automatically turns off.
Press the PWR button while the power is on to measure again.

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Single measurement
Pressing the PWR button once starts single measurement, then displays the results.
Example of measured
distance display
Example of measurement
failure
Continuous measurement
Press and hold down the PWR button to start continuous measurement up to approx. 8 seconds. During
measurement, the measured result is displayed consecutively while the laser emission mark is flashing. If
you release your finger from the button, continuous measurement stops.
Standby
Continuous measurement
Press the PWR button once
Press and hold down
the PWR button
Single measurement
llWhen measuring a flagstick at a golf course
Keep targeting the flagstick at the center of the target mark with the continuous measurement function
to minimize the effects of hand shake.

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En Specifications
Measurement range (actual distance) 5-1,090 meters/6-1,200 yards
Distance display (increment)
Actual distance (upper): Every 1 m/yd.
Actual distance (lower): Every 0.5 m/yd.(shorter than 1,000 m/yd.)
1 m/yd. (1,000 m/yd. and over)
Slope adjusted distance (lower): Every 0.2 m/yd.
1 m/yd. (1,000 m/yd. and over)
Accuracy (actual distance)*1
±1 m/yd. (shorter than 100 m/yd.)
±2 m/yd. (100 m/yd. and over, shorter than 1,000 m/yd.)
±0.5% m/yd. (1,000 m/yd. and over)
Magnification (×) 6
Effective diameter of objective lens (mm) 22
Angular field of view (real) (˚) 6.0
Eye relief (mm) 17.0
Exit pupil (mm) 3.7
Diopter adjustment ±3 m-1
Dimensions (L × H × W) (mm/in.) 100 × 75 × 38/3.9 × 3.0 × 1.5
Weight (g/oz.) Approx. 175/6.2 (without battery)
Operating temperature (˚C/˚F) -10 — +50/14 — 122
Operating humidity (%RH) 80 or less (without dew condensation)
Power source CR2 lithium battery × 1 (DC 3V)
Automatic power shut-off (after approx. 8 sec. unoperated)
Waterproof structure Rainproof *2
Electromagnetic compatibility FCC Part15 SubPartB class B, EU:EMC directive, AS/NZS, VCCI classB,
CU TR 020, ICES-003
Environment RoHS, WEEE
Technical notes

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Laser classification IEC60825-1: Class 1M/Laser Product
FDA/21 CFR Part 1040.10: Class I Laser Product
Wavelength (nm) 905
Pulse duration (ns) 22
Output (W) 12.4
Beam divergence (mrad) Vertical: 3.75, Horizontal: 0.17
• The specifications of the product may not be achieved depending on the target object’s shape, surface texture and nature,
and/or weather conditions.
*1 Under Nikon’s measurement conditions.
*2 This product is equivalent to JIS/IEC protection class 4 (IPX4) (under Nikon’s testing conditions). This rating does not
guarantee the water resistance performance of the unit or that it will be free from damage or problems under all
conditions. Please observe the following when using:
• Do not operate or hold the product in running water.
• If any moisture is found on movable parts of this product, stop using the product and wipe it off.
Battery life
Approx. 13,000 times (at approx. 20°C (68°F))
This figure may differ according to conditions such as temperature and other factors. Use only as a guide.
• The battery supplied with this Nikon Laser Rangefinder is for operation checking. Due to natural electrical discharge, the
life of this battery will likely be shorter than that noted above.